function setTimeDateFmt(s) {  // 个位数补齐十位数
  return s < 10 ? '0' + s : s;
}

export default function createOrderNum() {
  const now = new Date()
  let month = now.getMonth() + 1
  let day = now.getDate()
  let hour = now.getHours()
  let minutes = now.getMinutes()
  let seconds = now.getSeconds()
  month = setTimeDateFmt(month)
  day = setTimeDateFmt(day)
  hour = setTimeDateFmt(hour)
  minutes = setTimeDateFmt(minutes)
  seconds = setTimeDateFmt(seconds)
  return now.getFullYear().toString() + month.toString() + day + hour + minutes + seconds + (Math.round(Math.random() * 1000000)).toString();
  //基于年月日时分秒+随机数生成订单编号
}
